Aura: New window shadows, desktop background debug toggle

ash/shell.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_SHELL_H_
 #define ASH_SHELL_H_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 10 matching lines @@
 
 namespace aura {
 class EventFilter;
 class RootWindow;
 class Window;
 }
 namespace gfx {
 class Point;
 class Rect;
 }
+namespace ui {
+class Layer;
+}
 namespace views {
 class NonClientFrameView;
 class Widget;
 }
 
 namespace ash {
 
 class AcceleratorController;
 class Launcher;
 class NestedDispatcherController;
@@ skipping 30 matching lines @@
  public:
   // In compact window mode we fill the screen with a single maximized window,
   // similar to ChromeOS R17 and earlier.  In overlapping mode we have draggable
   // windows.  In managed mode the workspace arranges windows for the user.
   enum WindowMode {
     MODE_COMPACT,
     MODE_MANAGED,
     MODE_OVERLAPPING,
   };
 
+  enum BackgroundMode {
+    BACKGROUND_IMAGE,
+    BACKGROUND_SOLID_COLOR
+  };
+
   enum Direction {
     FORWARD,
     BACKWARD
   };
 
   // A shell must be explicitly created so that it can call |Init()| with the
   // delegate set. |delegate| can be NULL (if not required for initialization).
   static Shell* CreateInstance(ShellDelegate* delegate);
 
   // Should never be called before |CreateInstance()|.
   static Shell* GetInstance();
 
   static void DeleteInstance();
 
   const gfx::Size& compact_status_area_offset() const {
     return compact_status_area_offset_;
   }
 
+  BackgroundMode desktop_background_mode() const {
+    return desktop_background_mode_;
+  }
+
   aura::Window* GetContainer(int container_id);
   const aura::Window* GetContainer(int container_id) const;
 
   // Adds or removes |filter| from the RootWindowEventFilter.
   void AddRootWindowEventFilter(aura::EventFilter* filter);
   void RemoveRootWindowEventFilter(aura::EventFilter* filter);
   size_t GetRootWindowEventFilterCount() const;
 
   // Shows the background menu over |widget|.
   void ShowBackgroundMenu(views::Widget* widget, const gfx::Point& location);
 
   // Toggles app list.
   void ToggleAppList();
 
   // Dynamic window mode chooses between MODE_OVERLAPPING and MODE_COMPACT
   // based on screen resolution and dynamically changes modes when the screen
   // resolution changes (e.g. plugging in a monitor).
   void set_dynamic_window_mode(bool value) { dynamic_window_mode_ = value; }
 
   // Changes the current window mode, which will cause all the open windows
   // to be laid out in the new mode and layout managers and event filters to be
   // installed or removed.
   void ChangeWindowMode(WindowMode mode);
 
   // Sets an appropriate window mode for the given screen resolution.
   void SetWindowModeForMonitorSize(const gfx::Size& monitor_size);
 
+  // Sets the desktop background mode.
+  void SetDesktopBackgroundMode(BackgroundMode mode);
+
   // Returns true if the screen is locked.
   bool IsScreenLocked() const;
 
   // Returns true if a modal dialog window is currently open.
   bool IsModalWindowOpen() const;
 
   // See enum WindowMode for details.
   bool IsWindowModeCompact() const { return window_mode_ == MODE_COMPACT; }
 
   // Sets the offset between the corner of the status area and the corner of the
@@ skipping 118 matching lines @@
   // mode. Shell does not own the shelf. Instead, it is owned by container of
   // the status area.
   internal::ShelfLayoutManager* shelf_;
 
   // Change window mode based on screen resolution.
   bool dynamic_window_mode_;
 
   // Can change at runtime.
   WindowMode window_mode_;
 
+  // Can change at runtime.
+  BackgroundMode desktop_background_mode_;
+
   // Owned by aura::RootWindow, cached here for type safety.
   internal::RootWindowLayoutManager* root_window_layout_;
 
   // Status area with clock, Wi-Fi signal, etc.
   views::Widget* status_widget_;
 
   // Offset between the corner of the status area and the corner of the screen
   // when in the compact window mode.
   gfx::Size compact_status_area_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_